Mixing-machine



(No Model.)

(LW. HOTTMAN.

MIXING MAGHINE.

No. 468,805. Patented Feb. 16,1892.

' WITNESSES: INVENTOR q/zm 14A; i gaw ma mama r-z-rws cm, PHOTO-LjTMm,msumumu u e NITED STATES PATENT QFFICE.

CHARLES W. IIOTTMAN, OF PHILADELPHIA, PENNSYLVANIA.

MIXING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 468,805, dated February16, 1892.

Application filed May 5, 1391. Serial No. 391,674. (No model.)

To all whom it may concern/.

. Be it known that 1, CHARLES W. HOTTMAN, a citizen of the UnitedStates, residing at Philadelphia, in the county of Philadelphia andState of Pennsylvania; have invented certain new and useful Improvementsin Mixlng-Machines; and I do hereby declare the following to be asufficiently full, clear, and

exact description thereof to enable others skilled in the art to makeand use the said lnvention.

This invention relates to mixing-machines used for the mixing of mincedmeat, sausagemeat, &c., and has for its object the more rapid andintimate mixture of materials and the simplification of the mechanismfor the purpose and facility of emptying and clean- 1mg.

This invention consists of a cylindric tub mounted upon aslowly-rotating platform and a series of inclined vanes or heaterssecured to a Vertical arbor placed eccentrically in the tub and amechanism for rotating the arbor and vanes at higher velocity than thetub, the arbor being detachably secured to the propelling mechanism andthe whole constructed as hereinafter described, and shown in theaccompanying drawings.

Referring to the drawings, Figure 1 shows a side elevation of theinvention with the tub in section; Fig. 2, a plan view, and Fig. 3 adetached enlarged view, of the vanes and their connection with thepropelling mechanism.

1 is a cylindric tub open at the top and made, preferably, of metal,galvanized iron, or heavy tinned plate answering the purpose. The bottom2 of the tub 1 is raised above the lower rim 3, so as to fitconcentrically upon a block 4, fastened to a large toothed wheel 5,turning upon a central pivot 6 in the base 7. The toothed wheel 5 isturned by a spurwheel 8, gearing with apinion 9 upon the lower part of avertical shaft 10, the lower end of the shaft 10 turning in a bearingformed in the base-plate 7. The vertical shaft 10 is supported in abearin g 11 near the upper part and has fixed upon it a worm-wheel12,turned by a tangent-screw 13 on the driving-shaft 14:. The shaft 14 issupported by and turnsin bearings 15 and 16 in the principal frame 17'.of the machine. A pair of loose and fast pulleys 1S serve to impartmotion from a belt guided by the shifter.

Upon the front end of the shaft 1-1 is fixed a beveled toothed pinion20, which engages 53 in the teeth of and turns a correspondinglybeveledwheel 21. The Wheel 21 is provided with a long hollow hub 22, which fitsinto and turns in the bearing 23.

Formed in the frame 17 perpendicularly above the bearing 23 is anotherbearing 24, through which fits a vertical shaft 25, which also fitsthrough the hub 22 of the wheel 21 and is splined at 26, so as to fit afeather secured in the hub 22, so as to turn with it, but free to slideup and down thereon. A collar 27, secured on the upper end of the shaft25, serves to limit the downward motion thereof.

Upon the lower end of the shaft 25 is a coupling 28, connecteddetachably by a pin 29, which, being withdrawn, permits of the easyremoval of the shaft 25 and the coupling 28. To the lower end of thecoupling 28 is secured an arbor 30 by a pin 31. The arbor 30 extends tothe bottom 2 of the tub 1 and has fixed at the lower end a transverseblade 32, beveled, which scrapes the bottom 2 and raises from it anymaterial resting upon it. The relative location of the axis of the arbor30 to the axis of the tub 1 and the cir- 8o cles described by the blades32, 33, and 34 is such that the blades sweep across the center of thetub 1 and continually turn the material from the center to thecircumference, thus insuring most rapid and intimate mixture of 8 5 thecontents of the tub.

Above the blade 32 are two series of inclined beveled blades 33 and 34,one series 33 being inclined upwardly from the axis of the arbor 30 andthe other 34 inclined downwardly. These blades 33 and 34: are alsoinclined in like direction to their motion of rotation, so as to liftany substances which come in their paths,'and since the paths of theinclination of the blades 33 are crosswise of the paths of 5 theinclination of the blades 34 the matter presented to their action isrepeatedly turned over and over and subdivided, and by the rotation ofthe tub 1 all the matter in the tub is brought within reach of theblades 33 and 34 and the stratum upon the bottom 2 continuously liftedby the blade 32 within the reach of the blades 33 and 34, so thatthorough intimate mixture rapidly results from the action of themachine.

Having described my invention, What I claim is 1. In a mixing-machine, atub arranged to rotate upon a vertical axis, in combination with avertical arbor located therein eccentrically to the axis of the tub andprovided with inclined blades of such radial length as to sweep acrossthe central portion of the tub,

and a propelling mechanism arranged to rotate both arbor and tub,substantially as set forth.

2. In a mixing-machine, a rotating cylindric tub having a fiat bottom,in combination with an arbor located therein having its axis eccentricto the axis of the tub and provided with blades of such radial length asto sweep across the center of the tub and to the circumference of thetub, a connected mechan- 7 ism for rotating both the tub and arbor, andabeveled blade connected thereto and turned with said arbor to scrapethe bottom of I the tub from the circumference and across the center ofthe bottom of the tub, substantially as set forth.

3. In a mixing-machine having rotating blades upon a vertical shaftarranged to sweep across the center of a tub and to the circumferencethereof, the splined shaft 25, the Wheel-hub 22, and a feather engagedin the Wheel-hub and splined shaft, in combination With the coupling28,- pin 29, arbor 30, and pin 31, arranged to facilitate the removaland replacement of =the arbor 30, substantially as set forth.

J. DANIEL EBY, PERCY A. BIvINs.

